Fountain-pen



(No Model.)

W. W. STEWART.

FOUNTAIN PEN.

No. 480,751. k Patented Aug. 16, 1892.

FIG.

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UNITED STATES PATENT OEETCE.

VILLIAM YV. STEWART, OF BROOKLYN, NEW YORK.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 480,751, dated August16, 1892.

Application iledd'annary 20, 1890. Serial No. 337.406. (No model.)

T0 all whom, 15 may concern:

Beit known that I, XVILLIAM W. STEWART, a citizen of the United States,residing in Brooklyn, in the county of Kings and State of New York, haveinvented certain new and' useful Improvements in 'Fountain Pens, ofwhich the following is a specification.

This invention relates to fountain-pens or pen-holders, and especiallyto those in that class wherein the tubular handle or ink-reser- Voir isclosed at its upper end and the ink is conducted to the pen through aduct at the lower end, its place bei-ng taken in the reservoir by airentering at the lower end of the holder.

Mypresent invention provides a very simple construction for holding thepen in the nozzle of the holder and for affording a continuous ink-ductby which the ink is conducted from the reservoir down to the pen.

Figure l in the accompanying drawings is a side elevation of my improvedpen. Fig. 2 is a longitudinal mid-section thereof, showing the pen withthe protecting-cap applied. Fig. 3 is a plan of the pen, thereservoir-handle and nozzle being shown in mid-section. Fig. 4 is aperspective view of the duct-wire removed from the holder, the pen beingshown in dotted lines. Fig. 5 is a longitudinal midsection of amodification. Fig. 6 is a transverse section of the pen and nozzle, onlarger scale, cut on the line 6 6. Fig. 7 is a transverse section, on alarger scale, cut on the line 7 7. Fig. 8 is a perspective View of amodification.

Referring to the drawings, let A designate the pen or pen-nib; B, thereservoir-holder; C, the removable cap for inclosing the pen when not inuse, this cap being shown only in Fig. 2, and D the nozzle or tubularplug which closes the lower end of the reservoir,

The pen A is inserted in the nozzle D, the latter being preferablyprovided with grooves a a for receiving the edge of the pen, as bestshown in Fig. 6. YVithin the nozzle and holder is an ink-conducting andpen-holding device F, (shown best in Fig. 4,) which in the preferredconstruction is made of a suitable length of wire doubled upon itself atthe middle, so that the two parts lie closely parallel in order to forma capillary duct or interstice b between them, and the doubled wire isbent at c downwardly, forwardly, and upwardly, so that its portion dpresses upwardly upon its portion e with an elastic pressure. Thedoubled wire is again bent at f downwardly and backwardly, being thencecontinued upwardly or rearwardly, as the portion g, which extends upinto the ink-reservoir, as shown in Figs. 2 and 3. The two end portionsof the wire forming this part g may be placed somewhat farther apartthan the wires of the portions c and d. This device F, being pressedinto the nozzle D, makes a tight tit therewith by reason of its portionse, d, and g being superposed and bent back and forth upon each other,whereby a considerable mass of wire is formed, which nearly fills themouth or throat of the nozzle, as indicated in cross-section in Fig. 7.Upon the insertion of the pen A its heel enters between the portions ed, and by reason of their reciprocal elastic pressure it is grippedtightly between them, and thereby held firmly in place.

The bundle or mass of wires in the throat of the nozzle offers anobstruction to the outiiow of the ink from the holder such that, takenin connection with the fact that the holder can discharge ink only bythe admission of air and can receive air only through the throat of thenozzle, prevents the too free flow of ink, while a capillary channel isprovided for conducting the ink in suitable quantities to the pen. Thischannel is formed by the space or interstice between the two wires,which thus conducts the ink to both sides of the pen by reason of thewires being in close contact with both its upper and under sides. Theportion g of the wire, being extended up into the reservoir andsupported only at its lower end, so that the upper ends of the Wire arefree to vibrate, serves to keep the ink in the reservoir in a freecondition and to maintain it as far as possible in the form of froth oramixture of ink and minute bubbles of air.

In Fig. 5 the pen is shown pressed in above the portion e of the wire,so that the pressure of the elastic wire is transmitted solely to theunder side of the pen and the inkis conducted solely to its under side.

In place of a wire or a doubled wire a single strip of metal may beused, as shown in Fig. 8.

IOO

The device F need not necessarily be of metal, but may be of hardrubber, celluloid, o r any other suitable material, of any crosssection;nor is it necessary that the portion g be used in all cases, as when sodesired the device F may terminate with the portion d.

I claim as my invention the following-defined novel features andcombinations, substantially as hereinbefore specified, namely:

l. In a fountainpen,a wire extending 1ongitudinally against the pen,bent upon itself beneath the heel of the pen, and extending thenceupwardly into the reservoir.

2. In a fountain-pen, a double wire extending longitudinally against thepen, bent upon itself beneath the heel of the pen, and extending thenceupwardly into the reservoir.

3. In a fountain-pen, a wire doubled upon itself, with its fold adjacentto the slit in the vWILLIAM W. STEWART.

Witnesses:

GEORGE H. FRASER, FRED WHITE.

